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JEE MATHEMATICS MCQ: PAIR OF STRAIGHT LINES

1 Easy

1 of 1

Application +4 | -1

Let

O

be the origin,

A(1,0)

and

B(0,1)

and

P(x, y)

are points such that

x y > 0

and

x+y < 1

, then

View answer and explanation

Correct option: A

P

lies either inside the triangle

O A B

or in the third quadrant

The correct answer is that

P

lies either inside the triangle

OAB

or in the third quadrant because

xy > 0

implies

P

is in the first or third quadrant, and

x + y < 1

restricts

P

to below the line

x + y = 1

.

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